Sony HCD-V818 Service Manual page 29

THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
• ¢ : internal component.
• 2 : nonflammable resistor.
• 1 : fusible resistor.
• C : panel designation.
Note: The components identified by mark ! or dotted line
with mark ! are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal pro-
duction tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
g : VIDEO/MD
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
m
: CHROMA
n : Y
o : VIDEO
J
: CD
c : digital out
• Abbreviation
EA : Saudi Arabia model.
SP : Singapore model.
MY : Malaysia model.
HK : Hong Kong model.
TW : Taiwan model.
IA : Indonesian model.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• p : parts mounted on the conductor side.
• ® : Through hole.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
• Indication of transistor
C
Q
These are omitted
B C E
B E
These are omitted
WAVEFORMS
– CD SECTION –
1
1.3Vp-p
IC101 #§ RFAC
2
2.5V
APPROX 500mVp-p
IC101 @¶ TE
3
2.5V
APPROX 200mVp-p
IC101 @ª FE
4
2.6Vp-p
7.5µsec
IC101 (§ MDP
– 35 –
– VIDEO SECTION –
1
8
4Vp-p
10MHz
27MHz
IC502 !£ XOUT IC509 1 XT1
9
2
4Vp-p
8MHz
44.1kHz
IC509 !ª LRCK
IC402 @º XOUT
!º
3
1Vp-p
2.11MHz
H
IC509 !¶ BCLK
IC505 &∞ COUT
!¡
4
2Vp-p
H
33.8MHz
IC505 ^ª YOUT IC504 8 384FS
5 !™
1Vp-p
H 27MHz
IC504 6 27M
IC401 7 COUT
6 !£
2Vp-p
H 33.8MHz
IC401 1 YOUT IC504 !™
7
1.2
Vp-p
H
J302 VOUT
– MAIN SECTION –
1
5.8Vp-p
5MHz
IC501 0 X2
2
4.6Vp-p
32.768kHz
IC501 !£ XT2
4.8Vp-p
– DISPLAY SECTION –
1
4.8Vp-p
8MHz
IC601 8 X-OUT
2
3.8Vp-p
8MHz
IC801 2 X-OUT
3
2.8Vp-p
4.09MHz
IC851 2 TX
– 36 –
5.5Vp-p
5Vp-p
4Vp-p
4.3Vp-p
3.6Vp-p